Dolphin/shark hook fin on swim vest



FIG. 1 is a right side view of the dolphin/shark hook fin on swim vest of the present invention, the left side view being a minor image thereof;

FIG. 2 is a back view thereof;

FIG. 3 is a top view thereof; and,

FIG. 4 is a bottom view thereof. 

The ornamental design for a dolphin/shark hook fin on swim vest, as shown and described. 